Most software work in pharma and manufacturing is still CRUD, they just have cultures of rigorous documentation that permeates the industry even when it's low value. Documenting every little change made sense when I was programming the robotics for a genetic diagnostics pipeline, not so much when I had to write a one pager justifying a one line fix to the parser for the configuration format or updating some LIMS dependency to fix a vulnerability in an internal tool that's not even open to the internet.